Online PHP editor | refs for bQqGA

<?php function benchmarkMemory(callable $function, $args=null) { declare(ticks=1); if(!class_exists('classWithNoName')) { class classWithNoName { public static $memory, $max; } function functionWithNoName() { classWithNoName::$memory = memory_get_usage() - classWithNoName::$memory; classWithNoName::$max = classWithNoName::$memory>classWithNoName::$max? classWithNoName::$memory: classWithNoName::$max; classWithNoName::$memory = memory_get_usage(); } classWithNoName::$memory = memory_get_usage(); classWithNoName::$max = 0; } register_tick_function('functionWithNoName'); $result = is_array($args)? call_user_func_array($function, $args): call_user_func_array($function); unregister_tick_function('functionWithNoName'); $memory = classWithNoName::$max; classWithNoName::$max = 0; return [ 'memory' => $memory ]; } var_dump(benchmarkMemory('str_repeat', ['test',1E4]));//40068 var_dump(benchmarkMemory('str_repeat', ['test',1E3]));//4040